#include <stdio.h>
#include <string.h>
#include <windows.h>
#include <stdlib.h>
int main()
{
	char ch[]="##################";
	char ch1[]="welcome to bit!!!!";
	//int sz=sizeof(ch)/sizeof(ch[0])-2;
	int sz=strlen(ch)-1;
	int left=0;
	int right=sz;
	while(left<=right)
	{
		ch[left]=ch1[left];
		ch[right]=ch1[right];
		printf("%s\n",ch);
		Sleep(1000);
		system("cls");
		left++;
		right--;
	}
	return 0;
}